In 1856 L.J.F. Janssen, curator of the Dutch Museum of Antiquities, published his book Hilversumsche Oudheden. Eene bijdrage tot de ontwikkelingsgeschiedenis der vroegste Europesche volken (Translation: Antiquities from Hilversum. A contribution to the history of development of the earliest European peoples ). It will not be surprising that the book is scientifically not completely up to date. However the book is still of interest when considering its historical context. Archaeology, as we know it today, is for an important part based on ideas that were developed in the middle of the 19th century. Between 1830 and 1933, Charles Leyell published his Principles of Geology , stressing that the earth was much older than could be determined from the bible. It was unclear how this related to the history of mankind; it would be three more years before The Origin of Species would be published by Charles Darwin. In 1837 C.J. Thomsen presented his ideas on the different stages in the
